Fourth Quarter Earnings Call January 25, 2018

Fourth Quarter Earnings Call January 25, 2018 Financial Data Charts This presentation consists of L3, Inc. general capabilities and administrative information that does not contain controlled technical data as defined within the International Fourth Traffic Quarter in Earnings Arms (ITAR) Call Part January 120.10 25, 2018 or Export Administration Regulations (EAR) Part 734.7-11. 1

Forward-Looking Statements Certain of the matters discussed in these slides, including information regarding the company s 2018 financial guidance, are forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. All statements other than historical facts may be forward-looking statements, such as may, will, should, likely, projects, financial guidance, expects, anticipates, intends, plans, believes, estimates, and similar expressions are used to identify forward-looking statements. The company cautions investors that these statements are subject to risks and uncertainties, many of which are difficult to predict and generally beyond the company s control, that could cause actual results to differ materially from those expressed in, or implied or projected by, the forward-looking information and statements. Some of the factors that could cause actual results to differ include, but are not limited to, the following: our dependence on the defense industry; backlog processing and program slips resulting from delayed awards and/or funding from the Department of Defense (DoD) and other major customers; the U.S. Government fiscal situation; changes in DoD budget levels and spending priorities; U.S. Government failure to raise the debt ceiling; our reliance on contracts with a limited number of customers and the possibility of termination of government contracts by unilateral government action or for failure to perform; the extensive legal and regulatory requirements surrounding many of our contracts; our ability to retain our existing business and related contracts; our ability to successfully compete for and win new business, or, identify, acquire and integrate additional businesses; our ability to maintain and improve our operating margin; the availability of government funding and changes in customer requirements for our products and services; the outcome of litigation matters (see Notes to our annual report on Form 10-K and quarterly reports on Form 10-Q); results of audits by U.S. Government agencies and of ongoing governmental investigations; our significant amount of debt and the restrictions contained in our debt agreements and actions taken by rating agencies that could result in a downgrade of our debt; our ability to continue to recruit, retain and train our employees; actual future interest rates, volatility and other assumptions used in the determination of pension benefits and equity based compensation, as well as the market performance of benefit plan assets; our collective bargaining agreements; our ability to successfully negotiate contracts with labor unions and our ability to favorably resolve labor disputes should they arise; the business, economic and political conditions in the markets in which we operate; the risk that our commercial aviation products and services businesses are affected by a downturn in global demand for air travel or a reduction in commercial aircraft OEM (Original Equipment Manufacturer) production rates; the DoD s Better Buying Power and other efficiency initiatives; events beyond our control such as acts of terrorism; our ability to perform contracts on schedule; our international operations including currency risks and compliance with foreign laws; our extensive use of fixed-price type revenue arrangements; the rapid change of technology and high level of competition in which our businesses participate; risks relating to technology and data security; our introduction of new products into commercial markets or our investments in civil and commercial products or companies; the impact on our business of improper conduct by our employees, agents or business partners; goodwill impairments and the fair values of our assets; and ultimate resolution of contingent matters, claims and investigations relating to acquired businesses, and the impact on the final purchase price allocations. Our forward-looking statements speak only as of the date of these slides or as of the date they were made, and we undertake no obligation to update forward-looking statements. For a more detailed discussion of these factors, also see the information under the captions Risk Factors and Management s Discussion and Analysis of Financial Condition and Results of Operations in our most recent report on Form 10-K for the year ended December 31, 2016 and any material updates to these factors contained in any of our future filings. As for the forward-looking statements that relate to future financial results and other projections, actual results will be different due to the inherent uncertainties of estimates, forecasts and projections and may be better or worse than projected and such differences could be material. Given these uncertainties, you should not place any reliance on these forward-looking statements. 2

Select Financial Data - - Fourth Quarter ($ in Millions, except per share amounts) 4Q17 4Q16 vs. 4Q16 Net Sales $2,574 $2,643-3% Organic (Decline) Growth -4% 2% -600 bps Operating Margin 10.2% 10.7% -50 bps Operating Income $263 $282-7% (2) Interest Expense and Other, Net $37 $41-10% Effective Income Tax Rate -19.9% 22.4% n.m. (3) Minority Interest Expense $4 $4 n.c. Diluted Shares 79.9 78.9 1% Diluted EPS from Continuing Operations $3.34 $2.32 44% Net Cash from Operating Activities from Continuing Operations $406 $490-17% (4) Free Cash Flow $347 $408-15% Notes: (1) The prior period results have been adjusted to present the Vertex Aerospace business as discontinued operations. (2) Interest Expense and Other, Net is comprised of: (i) interest expense of $43 million for 4Q17 and 4Q16, (ii) interest and other income, net of $6 million for 4Q17 and $4 million for 4Q16 and (iii) a debt retirement charge of $2 million for 4Q16. (3) Minority Interest Expense represents net income from continuing operations attributable to noncontrolling interests. (4) See Reconciliation of GAAP to Non-GAAP Measurements. n.m. = not meaningful n.c. = no change 3

Segment Results - - Fourth Quarter ($ in Millions) Sales 4Q17 Margin 4Q17 Growth Organic Operating Change Segment Net Sales vs. 4Q16 Growth Margin vs. 4Q16 (bps) Electronic Systems $ 803-7% -9% 13.7% +100 Aerospace Systems 727 n.m. n.m. 8.0% +110 Communication Systems 602 3% 3% 7.8% -180 Sensor Systems 442-6% -8% 10.9% -330 Total Segment $ 2,574-3% -4% 10.2% -50 n.m. = not meaningful 4

4Q17 Diluted EPS from Continuing Operations Reconciliation Midpoint Guidance (December 5, 2017) $ 2.22 * Tax Reform Gain $ 0.99 Foreign Legal Entity Realignment Tax Benefit 0.38 Incremental Business Integration and Restructuring Expenses (0.24) Other, Net (0.01) Subtotal $ 1.12 Actual Results $ 3.34 * Based on 2017 Financial Guidance from Continuing Operations as of December 5, 2017, less results for the year-to-date 9 month, September 29, 2017. Refer to pages 63 to 66 of L3 s 2017 Investor Conference (December 5, 2017) presentation on the Company s website. 5

Select Financial Data - - Full Year ($ in Millions, except per share amounts) 2017 2016 vs. 2016 Net Sales $9,573 $9,210 4% Organic Growth 2% 1% +100 bps Operating Margin 10.7% 10.4% +30 bps Operating Income $1,020 $957 7% Interest Expense and Other, Net $149 $153-3% Effective Income Tax Rate 11.7% 21.3% -960 bps Minority Interest Expense $16 $14 14% Diluted Shares 79.6 78.8 1% Diluted EPS from Continuing Operations $9.46 $7.86 20% Net Cash from Operating Activities from Continuing Operations $986 $1,022-4% (4) (3) (2) Free Cash Flow $863 $834 3% Notes: (1) The prior period results have been adjusted to present the Vertex Aerospace business as discontinued operations. (2) Interest Expense and Other, Net is comprised of: (i) interest expense of $169 million for 2017 and $164 million for 2016, (ii) interest and other income, net of $20 million for 2017 and $18 million for 2016 and (iii) debt retirement charges of $7 million for 2016. (3) Minority Interest Expense represents net income from continuing operations attributable to noncontrolling interests. (4) See Reconciliation of GAAP to Non-GAAP Measurements. n.m. = not meaningful 6

Segment Results - - Full Year ($ in Millions) Sales 2017 Margin 2017 Growth Organic Operating Change Segment Net Sales vs. 2016 Growth Margin vs. 2016 (bps) Electronic Systems $ 3,024 10% 5% 13.3% +20 Aerospace Systems 2,773-6% -6% 7.6% -110 Communication Systems 2,229 9% 9% 9.5% n.c. Sensor Systems 1,547 5% 4% 12.6% +260 Total Segment $ 9,573 4% 2% 10.7% +30 n.c. = no change 7

2018 Consolidated Financial Guidance (in Millions, except per share amounts) Guidance Prior Guidance (January 25, 2018) vs. 2017 (December 5, 2017) Net Sales $9,850 to $10,050 4% $9,850 to 10,050 Organic Growth 3% n.c. 4% Operating Income $1,100 to $1,125 8% $1,100 to 1,150 Interest Expense and Other $141 ($19) $141 Effective Tax Rate 20% +830 bps 26.6% Minority Interest Expense $17 $1 $15 Diluted Shares ~80 n.c. ~80 Diluted EPS $9.30 to $9.50-1% $8.60 to $8.85 Free Cash Flow $900 4% $865 The current guidance for 2018 is subject to potential changes to interpretations of U.S. Tax Reform and excludes: (i) any adverse impacts from a protracted U.S. DoD FY18 budget continuing resolution, (ii) any potential goodwill impairment charges for which the information is presently unknown, (iii) potential adverse results related to litigation contingencies and (iv) other items such as gains or losses related to potential business divestitures and the impact of potential acquisitions. Notes: (1) Interest expense and other is comprised of: (i) interest expense of $170 million and (ii) interest and other income, net, of $29 million (including $9 million of income related to employee benefit plans). (2) Minority interest expense represents net income from continuing operations attributable to non-controlling interests. (3) The revisions to our Current Guidance compared to our Prior Guidance includes (i) a decrease in the effective income tax rate driven by the enactment of U.S. Tax Reform in December 2017, and (ii) a decrease in consolidated and segment operating income and margin due to higher expected FAS pension expense, net of CAS recoveries, of $15 million. (4) 2017 includes reclassification of employee benefit plan expense in accordance with ASU 2017-07, which L3 adopted effective January 1, 2018. (5) See Reconciliation of GAAP to Non-GAAP Measurements n.c. = no change 8

2018 Segment Guidance (in Millions) Midpoint Segment Midpoint Sales Operating Margin Segment Net Sales vs. 2017 Margin vs. 2017 (bps) Electronic Systems $3,200 to $3,300 7% 13.6% to 13.8% +30 Aerospace Systems $2,625 to $2,725-4% 7.8% to 8.0% +20 Communication Systems $2,225 to $2,325 2% 10.9% to 11.1% +130 Sensor Systems $1,700 to $1,800 13% 11.7% to 11.9% -80 Total Segments $9,850 to $10,050 4% $1,100 to $1,125 +40 Note: 2017 margins include reclassification of employee benefit plan expense in accordance with ASU 2017-07, which L3 adopted effective January 1, 2018. 9

Cash Flow ($ in Millions) 2018 2017 2016 Guidance Actual Actual (1) Income from continuing operations $ 775 $ 769 $ 633 Gain on sale of property, plant and equipment - (31) (5) Depreciation & amortization 230 225 198 Deferred income taxes 35 (4) 27 401K common stock match 108 106 102 Stock-based employee compensation 62 53 49 Amortization of pension and OPEB net losses 70 59 48 Working capital/other items (135) (191) (30) Capital expenditures, net (245) (150) (189) Income taxes allocated to discontinued operations - 27 1 (2) Free cash flow $ 900 $ 863 $ 834 Notes: (1) Before deduction of net income attributable to noncontrolling interests. (2) See Reconciliation of GAAP to Non-GAAP Measurements. 10

Supplemental Cash Flow Data ($ in Millions) 2018 2017 2016 Guidance Actual Actual Cash interest payments $ 163 $ 163 $ 162 Income tax payments, net 165 122 111 FAS pension expense 99 110 97 (4) (1) CAS pension cost 121 119 111 (2) (3) Pension contributions 100 97 97 (1) Excludes income tax payments attributable to discontinued operations. (2) FAS pension expense represents pension expense determined using U.S. GAAP and assumes a 2017 year-end weighted average discount rate of 3.78% (vs. 4.40% for 2016 year-end) and a 2018 weighted average pension asset return of 7.91%. (3) Estimated 2018 Pension Expense Sensitivity: A 25 bps increase/decrease in 12/31/17 discount rate would decrease/increase 2018 pension expense by ~$17 million and decrease/increase the 12/31/17 unfunded obligation by ~$155 million. (4) CAS pension cost represents estimated allowable and reimbursable pension cost under U.S. Government procurement regulations (determined using Cost Accounting Standards or CAS) on L3's U.S. Government contracts. 11

Depreciation, Amortization and Capital Expenditures ($ in Millions) 2017 2016 D&A CapEx, Net D&A CapEx, Net Segment 4Q17 2017 4Q17 2017 4Q16 2016 4Q16 2016 Electronic Systems $ 25 $ 79 $ 17 $ 69 $ 15 $ 60 $ 27 $ 68 Aerospace Systems 13 51 18 48 12 46 29 52 Communication Systems 13 49 11 (10) 12 47 15 31 Sensor Systems 13 46 19 43 12 45 11 38 Consolidated $ 64 $ 225 $ 65 $ 150 $ 51 $ 198 $ 82 $ 189 12

Cash Sources and Uses ($ in Millions) 2018 2017 2016 Guidance Actual Actual Beginning cash $ 662 $ 363 $ 207 Free cash flow from continuing operations 900 863 834 Free cash flow from discontinued operations - 86 12 Divestitures - 18 561 Acquisitions - (317) (388) Dividends (255) (236) (220) Share repurchases (300) (180) (373) Debt reduction - - (303) Other, net 193 65 33 Ending cash $ 1,200 $ 662 $ 363 Note: See Reconciliation of GAAP to Non-GAAP Measurements. 13

Capitalization and Leverage ($ in Millions) 12/31/17 12/31/16 Actual Actual Cash $662 $363 Debt $3,330 $3,325 Equity 5,162 4,624 Invested Capital $8,492 $7,949 Debt/Invested Capital 39.2% 41.8% Debt/LTM EBITDA 2.67x 2.88x Available Revolver $1,000 $1,000 Notes: (1) Debt/LTM EBITDA excludes discontinued operations. (2) See Reconciliation of GAAP to Non-GAAP Measurements. 14

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Segment Mix: 2018 Guidance Sensor Systems 18% $1,750M Sensor Systems 18% $207M / 11.8% Electronic Systems 32% $3,250M Net Sales Aerospace Systems 27% $2,675M Electronic Systems 40% $445M / 13.7% Operating Income/ Margin Aerospace Systems 19% $211M / 7.9% Communication Systems 23% $2,275M Communication Systems 23% $250M / 11.0% Note: Net sales and operating income/margin represent midpoints of the range of segment guidance. 16

2018 Segment Guidance - Current vs. Prior ($ in Millions) Current Guidance Prior Guidance (January 25, 2018) (December 5, 2017) Operating Operating Segment Net Sales Margin Net Sales Margin Electronic Systems $3,200 to $3,300 13.6% to 13.8% $3,200 to $3,300 13.7% to 13.9% Aerospace Systems $2,625 to $2,725 7.8% to 8.0% $2,625 to $2,725 8.0% to 8.2% Communication Systems $2,225 to $2,325 10.9% to 11.1% $2,225 to $2,325 11.1% to 11.3% Sensor Systems $1,700 to $1,800 11.7% to 11.9% $1,700 to $1,800 11.4% to 11.6% Consolidated $9,850 to $10,050 $1,100 to $1,125 $9,850 to $10,050 11.3% 17

Reconciliation of GAAP to Non-GAAP Measurements (1 of 2) (in Millions) 2018 2017 4Q17 2016 4Q16 Guidance Actual Actual Actual Actual Net cash from operating activities from continuing operations $ 1,145 $ 986 $ 406 $ 1,022 $ 490 Less: Capital expenditures (250) (224) (73) (210) (88) Add: Dispositions of property, plant and equipment 5 74 7 21 6 Income tax payments attributable to discontinued operations - 27 7 1 - Free cash flow from continuing operations $ 900 $ 863 $ 347 $ 834 $ 408 Net cash from operating activities from discontinued operations $ 117 $ 33 $ 19 $ 20 Less: Capital expenditures (4) (1) (6) (1) Income tax payments attributable to discontinued operations (27) (7) (1) - Free cash flow from discontinued operations $ 86 $ 25 $ 12 $ 19 18

Reconciliation of GAAP to Non-GAAP Measurements (2 of 2) (in Millions) 2017 2016 Cash Flow to EBITDA Reconciliation Actual Actual Net cash from operating activities from continuing operations $ 986 $ 1,022 Income tax payments, net of refunds 122 111 Interest payments, net of interest income 146 140 Stock-based employee compensation (159) (151) Gain on sale of property, plant and equipment 31 5 Other non-cash items (15) (25) Changes in operating assets and liabilities 134 53 LTM EBITDA from continuing operations $ 1,245 $ 1,155 Debt $ 3,330 $ 3,325 Debt/LTM EBITDA 2.67x 2.88x Note: EBITDA is defined as consolidated income from continuing operations (excluding impairment losses incurred on goodwill and identifiable intangible assets and losses related to business divestiture transactions), plus consolidated interest, taxes, depreciation and amortization. The Debt to EBITDA ratio is presented because we believe it to be a useful indicator of our debt capacity and our ability to service our debt. EBITDA is not a substitute for net cash from operating activities as determined in accordance with generally accepted accounting principles in the United States of America. EBITDA is not a complete net cash flow measure because EBITDA is a financial measure that does not include reductions for cash payments for our obligation to service our debt, fund our working capital and capital expenditures and pay our income taxes. Rather, EBITDA is one potential indicator of our ability to fund these cash requirements. We believe that the most directly comparable GAAP financial measure to EBITDA is net cash from operating activities. The table above presents a reconciliation of net cash from operating activities to EBITDA. 19

Glossary of Acronyms bps CapEx, Net CAS D&A EBITDA EDD/ETI EPS FAS GAAP LTM OPEB Basis Points Capital expenditures, net of disposition of property, plant and equipment Cost Accounting Standards - U.S. Government Depreciation and Amortization Earnings Before Interest Taxes Depreciation Amortization Electron Devices Division / Electronic, Inc. Earnings Per Share Financial Accounting Standards Board Generally Accepted Accounting Principles Last Twelve Months Other Post Employment Benefits 20

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